Car Issues?

i was driving the car today, which is saturday of course, and one of the two days that i run my errands and do what i have to do. and it did that thing again, not as bad that i had to pull off the road, but bad enough that i tried to accelerate and did very slowly and it was shaking really bad. and of course even better now is the fact that i am supposed to be taking the kids somewhere in about 45 minutes which i promised my daughter that i would take her if she was good in school this week. which she was very good. so i am taking her, even though it is probably going to cost me about 100 dollars. at least. so being that this place is about 45 minutes to an hour total away from me, i am keeping my fingers crossed that i get there okay and that the car starts acting well. because i dont have the money or the time to worry about this. never mind the time, the only money that i have is the money that i have been trying to so desperately to hang on to "in case of" and if i use that then i dont have any money saved up. but on the other end of course i need a car to get to work every day, so i would have to spend that money. hopefully the car starts working okay. i am crossing my fingers.